Properties of Waste Eggshell as Calcium Oxide Catalyst

Razi Ahmad; Rohazriny Rohim; Naimah Ibrahim

doi:10.4028/www.scientific.net/AMM.754-755.171

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 754-755Properties of Waste Eggshell as Calcium Oxide...

Properties of Waste Eggshell as Calcium Oxide Catalyst

Abstract:

The widespread usage of commercial calcium oxide (CaO) may lead to the depletion due to its non-renewable resources. CaO from eggshell waste has been studied to replace commercial CaO as it is cheaper and reduce cost of production. The objective of this study was to characterize CaO from waste eggshell. Raw eggshell was analyzed by thermal gravimetric analyzer (TGA) to obtain calcination temperature. The raw eggshell and calcined eggshell were characterized by x-ray fluorescence (XRF) and Fourier transform infrared (FTIR) spectroscopy to obtain elemental composition and functional group distribution. The morphologies of eggshell structures were determined by scanning electron microscope (SEM). TGA showed that the suitable temperature for calcination was 900^oC. XRF and FTIR results showed that calcium carbonate (CaCO₃) in the raw eggshell had been transformed to CaO. The irregular shape of raw eggshell also had been changed to regular shape for calcined eggshell.

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Periodical:

Applied Mechanics and Materials (Volumes 754-755)

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171-175

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https://doi.org/10.4028/www.scientific.net/AMM.754-755.171

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Online since:

April 2015

Authors:

Razi Ahmad, Rohazriny Rohim, Naimah Ibrahim

Keywords:

Bio-Oil, Calcium Carbonate, Calcium Oxide, Catalyst, Eggshell

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